Horizontal and Vertical Polarization: Task-Specific Technological Change in a Multi-Sector Economy / Sang Yoon (Tim) Lee, Yongseok Shin.

Format:

Book

Author/Creator:

Lee, Sang Yoon (Tim).

Contributor:

National Bureau of Economic Research.

Shin, Yongseok.

Series:

Working Paper Series (National Bureau of Economic Research) no. w23283.

NBER working paper series no. w23283

Language:

English

Physical Description:

1 online resource: illustrations (black and white);

Other Title:

Horizontal and Vertical Polarization

Place of Publication:

Cambridge, Mass. National Bureau of Economic Research 2017.

Summary:

We analyze the effect of technological change in a novel framework that integrates an economy's skill distribution with its occupational and industrial structure. Individuals become managers or workers based on their managerial vs. worker skills, and workers further sort into a continuum of tasks (occupations) ranked by skill content. Our theory dictates that faster technological progress for middle-skill tasks not only raises the employment shares and relative wages of lower- and higher-skill occupations among workers (horizontal polarization), but also raises those of managers over workers as a whole (vertical polarization). Both dimensions of polarization are faster within sectors that depend more on middle-skill tasks and less on managers. This endogenously leads to faster TFP growth of such sectors, whose employment and value-added shares shrink if sectoral goods are complementary (structural change). We present several novel facts that support our model, followed by a quantitative analysis showing that task-specific technological progress--which was fastest for occupations embodying routine-manual tasks but not interpersonal skills--is important for understanding changes in the sectoral, occupational, and organizational structure of the U.S. economy since 1980.

Notes:

Print version record

March 2017.